Theos ...**** My tipping point would be a teaching of false doctrine that knowingly went unchecked. Like if the Wt came out and said the Trinity was true. That would be my tipping point that something is wrong******
According to the scriptures Jehovah gave ample evidence that Jesus was the Christ by signs and wonders to Israel to secure the spiritual Israel of God. We are personally promised by the Father in 1 John 5:9-13, That in conjunction with the withness of these earlier followers of Jesus who gave us the NT that the Father will also give us a personal witness when We believe what HE says about HIS Son, In HIM, you will have New life to overcome Satan, sin and death.
I believe most of us agree that through the ages after Jerusalem was destroyed in 70AD that the church On EARTH was a mixture of wheat and weeds. It is possible that some groups had more "Bibical" truth than others, but NONE was exclusively used by Jesus and Jehovah.
The WBTS is not JUST claiming That they have more truth than any other church, but CLAIM that they were selected as THE ONLY CHANNEL that Jehovah is using, based on Bibical chronology that ended up with members of the society been in imprisioned in 1919. So regardless of which group has more or less truth, the WBTS EXISTENCE is based on the accuracy of these dates. If these dates are wrong, they may still have some truth, but their foundation of being the ONLY CHANNEL based on dates have proven to be in error and subsequently, they are just another sect at best and a cult at worse.